发明授权
- 专利标题： Ethernet transport facility over digital subscriber lines
- 专利标题（中）： 以太网传输设施通过数字用户线路
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申请号： US866831申请日： 1997-05-30
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公开(公告)号： US6088368A公开(公告)日： 2000-07-11
- 发明人: Avinoam Rubinstain , Yackov Sfadya , Shimon Peleg , Noam Alroy , Boaz Porat
- 申请人： Avinoam Rubinstain , Yackov Sfadya , Shimon Peleg , Noam Alroy , Boaz Porat
- 申请人地址： ILX Tel Aviv
- 专利权人： 3Com Ltd.
- 当前专利权人： 3Com Ltd.
- 当前专利权人地址： ILX Tel Aviv
- 主分类号： H04L12/413
- IPC分类号： H04L12/413 ; H04L12/44 ; H04L12/46 ; H04L12/64 ; H04M11/06 ; H04L12/66
摘要：
The present invention provides a facility transport system for transporting Ethernet over digital subscnber lines. The system, termed 10BaseS, is capable of transmitting 10 Mbps Ethernet over existing copper infrastructure. The system utilizes carrierless amplitude modulation/phase modulation (CAP), a version of suppressed carrier quadrature amplitude modulation (QAM). The 10BaseS transport facility can deliver symmetrical data at approximately 13 Mbps (net 10 Mbps) over the unscreened, twisted pair telephone wires originally intended for bandwidths between 300 Hz and 3.4 KHz. The system utilizes frequency division multiplexing (FDM) to separate downstream channels from upstream channels. FDM is also used to separate both the downstream and upstream channels from POTS signals. The downstream and upstream data channels are separated in frequency from bands used for POTS and ISDN, enabling service providers to overlay 10BaseS on existing services.
公开/授权文献
- USD258292S Data card support and mailer member 公开/授权日：1981-02-17
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